• Tyler Hvass posted an update 1 month, 1 week ago

    RFID tags can be seen everywhere in our lives. The most common tickets, clothing, security and other industries have different types for applications in each industry. Then let’s learn about the types and characteristics of RFID tags together!RFID tags can be seen everywhere in life. The most common tickets, clothing, security and other industries are used in various industries, and their selection types are different, so let’s learn about the types and characteristics of RFID tags together!RFID tag is the abbreviation of (Radio Frequency Identification), also known as radio frequency identification, commonly known as electronic tag. The contact type IC card uses radio frequency identification technology, namely RFID technology. Non-contact IC cards are also called RFID cards or electronic tags.Types of RFID tagsFirst: Electronic tags are divided into two categories: active and passive:1. Active RFID, also known as active RFID (Active tag), is a type of electronic tag classified according to the different power supply modes of the electronic tag, and it usually supports remote identification. Electronic tags can be divided into active tags (Active tags), passive tags (Passive tags) and semi-passive tags (Semi-passive tags). The active electronic tag is equipped with a battery, and the passive radio frequency tag does not have a built-in battery. The semi-passive tag (Semi-passive tag) partly relies on the battery to work.2. Passive RFID, the radio frequency tag adopts frequency hopping working mode, has anti-interference ability, users can customize the standard data reading and writing, it is more efficient in the special application system, and the reading distance can reach more than 10 meters. Passive radio frequency tags have a 1024bits memory capacity and ultra-wide working frequency band, which not only conforms to relevant industry regulations, but also enables flexible development and application, and can read and write multiple tags at the same time. Passive radio frequency tag design, without battery, memory can be repeatedly erased and written more than 100,000 times.Second: According to the different frequency, it can be divided into low frequency (LF), high frequency (HF), ultra high frequency (UHF), microwave (MW) electronic tags: RFID tag frequency is an important feature, which determines the working principle and working distance of the tag.1. The typical operating frequency of high-frequency cards is 13.56MHz, which is the most mature and widely used card in China, and there are many types of cards. PHILIPS (NXP)’s Mifare One card (model S50), S70 card, UltraLight card, DesFire card, these types of cards belong to the TYPEA card defined by the ISO14443 standard, but do not fully meet the requirements of ISO14443-4, non-contact CPU card Meet the requirements. TYPEB cards also have logical encryption cards, such as AT88RF020 from Atmel, but less. The commonly used TYPEB cards in China are all CPU cards. Cards in this frequency band are still increasing, such as MIFARE Ultralight C, Mifare Plus, etc. Domestic Huahong, Fudan, Huada, Tongfang, etc. also have a variety of cards in this frequency band, such as SHC1102, SHC1112, SHC1108, FM11RF005, FM1208 and other chips. Another standard in this frequency band is ISO15693. The card sensing distance is farther than TYPEA and TYPEB, which can reach 1 meter. Common types include Mifare Icode II and Ti 2K.2. The frequency of the low-frequency card is generally below 135K Hz, and the typical 125 Hz ID card is widely used. This card has only one curing serial number that can be read by the device. Since the IC chip used in ID cards was first introduced by the Swiss EM company, it is sometimes called an EM card. There are many other types of low-frequency cards, such as EM4469 from EM, T5557 from Atmel and other low-frequency cards with logical encryption function.3. The typical working frequencies of UHF and microwave tags are: 433MHz, 900MHz, 2.45GHz, 5.8GHz, and the card reading distance can be up to 10m or more. Typical applications of such tags include: logistics and supply management, manufacturing and assembly, air baggage handling, mail, express parcel handling, document tracking, access control, electronic tickets, automatic road toll collection, etc. Such labeling technology is now an indispensable part of the Internet of Things.